American Solar Energy Society(ASES) TXSES is a state chapter of this organization and they've been promoting solar since 1954. A nonprofit dedicated to increasing the use of solar energy, energy efficiency, and other sustainable technologies, their website has it all, from the basics of solar energy to a job board.

Public Citizen TXSES now collaborates with these folks for Solarize Texas. They are national organization with a Texas office devoted to promoting cleaner energy, cleaner government, cleaner cars and air, and safe products for all Texans.

National Renewable Energy Lab (NREL) is a department of the U.S. Department of Energy. Located in Boulder, CO, it is the nation’s primary research and development group for renewable energy and energy efficiency.

Solar Energy Industries Association(SEIA) works to expand the use of solar technologies, strengthen research and development, remove market barriers, and improve education and outreach for solar.

The Vote Solar Initiative's mission is to stop global warming, foster economic development and increase energy independence by bringing solar energy into the mainstream.They work on the key policies necessary to bring solar to scale. Vote Solar works with state governments to build sustainable solar markets, remove regulatory barriers and lay the necessary groundwork for a solar future.

Austin Energy Green Building Program isAmerica's #1, award winning, Green Building Program. They offer guidance and education on sustainable building practices and energy upgrades. If you are lucky enough to live in their territory, don't pass up the opportunity to learn from them. If you don't, there is still much to learn from their website and programs.